Year % of GNI 1970 4.0419824 1971 4.0419824 1972 4.0419824 1973 4.0419824 1974 4.0419824 1975 4.0419824 1976 4.0419824 1977 4.0419824 1978 4.0419824 1979 4.0419824 1980 4.0419824 1981 4.0419824 1982 4.0419824 1983 4.0419824 1984 4.0419824 1985 4.0419824 1986 4.0419824 1987 4.0419824 1988 4.0980715 1989 3.9068011 1990 3.6 1991 4.3 1992 5.1 1993 5.1 1994 5.5 1995 5.2 1996 4.6 1997 5.3860794 1998 5.3860794 1999 5.3933995 2000 5.4007196 2001 5.4080397 2002 5.4153598 2003 5.4226799 2004 5.43 2005 5.58 2006 5.71 2007 4.87 2008 4.63500000000003 2009 4.4 2010 4.95 2011 4.51 2012 4.77 2013 4.88 2014 4.69 2015 4.7610887623518 2016 4.98540300507551 2017 4.70152826848752 2018 4.72129350844955 2019 4.74105874841159 2020 4.7370096892192 2021 4.44530031372504